Table 11
Number of Infant Deaths, Live Births and Infant Death Rates
by Selected Characteristics of Newborn and of Mother
for Michigan Residents, 2023
(Continued)

Characteristics of Newborn Infant
Deaths		 Live
Births		 Infant Death
Rate
Sex of Infant 607 99,179 6.1  ±0.5
  Male 332 51,048 6.5  ±0.7
  Female 274 48,128 5.7  ±0.7
Birthweight 607 99,179 6.1  ±0.5
  1,499 Grams or Less 287 1,372 209.2  ±21.8
  1,500 - 2,499 Grams 101 7,488 13.5  ±2.6
  2,500 Grams or More 211 90,269 2.3  ±0.3
Plurality 607 99,179 6.1  ±0.5
  Single Birth 528 95,575 5.5  ±0.5
  Multiple Birth 72 3,585 20.1  ±4.6
       
Characteristics of Mother Infant
Deaths		 Live
Births		 Infant Death
Rate
Age of Mother 607 99,179 6.1  ±0.5
  < 20 46 3,460 13.3  ±3.8
  20 - 29 270 45,564 5.9  ±0.7
  30 - 39 262 47,052 5.6  ±0.7
  40 + 18 3,063 5.9  ±2.7
Marital Status 607 99,179 6.1  ±0.5
  Married 257 60,870 4.2  ±0.5
  Unmarried 336 38,270 8.8  ±0.9
Level of Prenatal Care 607 99,179 6.1  ±0.5
  Adequate 315 69,035 4.6  ±0.5
  Intermediate 162 22,537 7.2  ±1.1
  Inadequate 123 7,607 16.2  ±2.8
       
Exposure to Tobacco Infant
Deaths		 Live
Births		 Infant Death
Rate
Smoked During Pregnancy 607 99,179 6.1  ±0.5
  No 526 91,304 5.8  ±0.5
  Yes 81 7,875 10.3  ±2.2
Secondhand Smoke During Pregnancy 607 99,179 6.1  ±0.5
  No 479 89,332 5.4  ±0.5
  Yes 65 6,232 10.4  ±2.5
Smoked or Secondhand Smoke During Pregnancy 607 99,179 6.1  ±0.5
  No 442 84,982 5.2  ±0.5
  Yes 105 10,812 9.7  ±1.8
History of smoking 607 99,179 6.1  ±0.5
  No 463 86,759 5.3  ±0.5
  Yes 112 11,888 9.4  ±1.7
       


Note: Rates are per 1,000 live births. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95% statistical confidence. Records with selected characteristics unknown are included in total only.  Level of prenatal care is according to the Kessner Index which is a classification of prenatal care based on the month of pregnancy in which prenatal care began, the number of prenatal visits and the length of pregnancy (i.e. for shorter pregnancies, fewer prenatal visits constitute adequate care.)
Source: 2023 Michigan Resident Birth-Death Matched File, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services